Dump-car.



Patented 001.31, 1911. SVSHBETBSVHEBT l.

D. E.. 4BLAIR..

DUMP CAR. APPLICATION FILED SEPT. 8g 1909.

QQITNEE EE D. E. BLAIR.

DUMP GAR.

APPLICATION FILED SEPT. 8, 1909. Patented Oct' 31,

3 SHEETS-SHEET 2,

lNVENT U1=L DAVID E ELAIEL.

@Maw/M D. E. BLAIR.

DUMP GAR.

APPLICATION PILEp SEPT. s, 1909.

1,067,324, r Patented 001.31, 1911.

3 SHEETS-SHEET 3.

:DAVE: EELAIH.

DAVID E. BLAIR, 0F MONTREAL, QUBEC, CANADA.

.DUMP-CAR.

Specification of Letters Patent.

Patent-ea oet.. a1, wir.

Application led September 8, 1909. Serial N o. 516,874.

To all 'whom it may concern:

Be it known that I, Dxvm E. BLAIR, of thel city of Montreal, in the Province'of Quebec and Dominion of Canada, have invented certain neu and useful Improvements in Dump-Cars, of which the following is a full, clear, and exact description.

This invention relates to dump cars of the type having side doors, which are auto- `matically released and opened when the car will be sufficiently stong to carry the load and resist the various strains to which it is subjected; that can be quickly and easily tilted to one side to discharge its load, and that can be returned to its normal position with great facility.

A further object is to provide a car which will be particularly adapted to carry loads such as ballast and the like', that can be discharged lengthwise along one side of the car, said car being provided with means to prevent the ballast from spreading betweenl the car trucks, thus detaining -the car unnecessarily on lines where the passenger. traffic is heavy. A

For particulars of body construction, reference may be had to my complementary specification, Ser. No.516,875.

In the drawings which illustrate my invention2-Figure' 1 is a plan view of a car, the right half showing the body of the car, and the left slipwing the under frame. Fig. ,2 is a side elevation of the dumping car, the left half being shown in central longitudinal section. Fig. 3 is an elevation of the rear end of the car. Fig'. L is a vertical transverse section on the line 7-8 of Fig. 1. Fig. 5 is an'enlarged vertical transverse section on the line 9-10 of Fig. 1. Fig. 6 is an enlarged, vertical, longitudinal section on, the line 11-12 of Fig. 5.

Referring t the drawings, 13 designates a car body comprising floor plates 14, end walls- 15, and transverse diaphragms or The car body is mounted upon partitions 16. One side wall of the car is ixed, but the opposite side wall consists of a series of doors 17 extending from end to end of the car, said doors being hinged at the bottom to swing outwardly and downwardly. The car body is stitfened by a series of longitudinal angle bars, the center angle upon which the body isl supported being designated by the numeral 18 and the angles on each sideof the center, by the numeral 19. The doors 17 are operated by means of a lock `shaft 20, carrying door latches 21, said shaft 20 being actuated by means of a lever :22, pivotally connected to a link 23 secured to the under frame of the car. liVhen the doors drop, they yare supported at a suitable angle to prevent the load from'spreading underneath the car by means of buffers carried upon hangers said hangers being held in position by means of the pivoted links Q6, which are also secured to the under frame of the car.

YEhe under frame comprises a center sillv consisting of the channel beams 2T which are connected and supported by means of suitable plates riveted thereto in the usual .mannen At one side of the imderframc, a

side sill 28 extends from .end to end of the car, while at the opposite side, the side sills Q9 are provided adjacent the car trucks. car is .carried upon bolster frames JO under which the trucks are located.

31 designatesthe end sills of the under fra-me, and 32 the tie plates connecting the channel beams of the center sill. The bolster 'frame is strengthened and supported by means of the gusset plates 33. .y

34 designates the transverse beams extending from the 'center sill 27 tothe side sill Q8, said beams carrying the shaft, which operates the tilting mechanism. Theeh'annel beams of the center sill Q7 are connected at intervals by means of cover plates 36 which are' The hinge4 The l erate in the apertures or slots 57 in theplates 36. The car being mounted upon the rolling hinges 39 may thus be tilted to one side,` as shown in dotted lines in Fig. el, and the center ot support of the car body is preferably ont of line with the central axis oi' the car in order that it may dump itself automatically when released.

'llae operation or' tilting the car is acconr plished by means of a shaft 43 Which is prei'erably squared, being provided at intervals with bearings da, Which operate in bearing plates Pinions 46 are mounted on the shaft 43 and engage or mesh with the tee-th oi' the racks Il?, Which are secured to the angle bars 48, located between the licor bars lll on the' opposite side of the car from the doors. 'llhe racks t7 are provided I with projecting toe-pieces i9 at their lower end of the c ar .may

Y mechanism.

ends which engage the guide rolls 50 mounted on the plates 5l and prevent the car from tilting too far downwardly. Gusset plates are provided to brace the end sills ill, and diagonal braces 53 connect said. gus set plates with the center sill. rlhe iront be provided with an operating platform 54 and the rear end with a platform i The operation of the tilting and dump* ing mechanism will be readily understood lrom the Jforegoing description. 'lhe car is loaded in its normal level position and is held in place by the engagement of the pin ion 46 with the rack 44e, the shaft #i3 being locked and released by any well known To discharge' the contents of the carthe shaft i3 is released and as the center of support of the car body is slightly out of line with the center of gravity, it will be automatically tilted in the direction shown in broken lines in li ig. 4. The rolling hinge members carry the car body easily r to this dumping position and the teeth ft2 operating in the slots B7, prevent any slipping movement. End motion of the car body is 'prevented by means of the plates 38. The doors are automatically released when the car begins to tilt and fall downwardly e to a position which will prevent the con- "llhus, when the load is noemer tents of the car from falling back under the trucks. rlhe car, vvhen emptied, will return by gravity to its former position. When the car is loaded the body is nearer the closed side than the open side thereof, so that the body tilts by gravity to dump the load. lin tilting the body rolls on the hinge irons so that the center oit support is shifted past the center of gravity toward the door side of the body. discharged, the body automatically rights itself, the 'momentum attained in the rst part of the movement being sufficient to carry Zontal position, Where it is locked.

1While l have shown the preferred embodiment ot my tilting and operating mechanism, it will be understood that several modifications may be made without departing from the spirit of my invention.

Having thus described my invention, what l claimy is l. A dump car 'of the character described comprising a car body, ing a. longitudinal center sill, hinge members between the center sill and `the car body, means ior tilting' the car laterally upon its hinges, discharging doors' at one side of the car, doorsivith the tilting movement otl the car, bullet-s pivoted under the car body, and means for positioning said buffers to support the discharging doors, substantially as described.

A dump car olf the character described comprising a. caribody, an underirame having a longitudinal. center sill. hinge members interposed between the car body and the underi'rame, a longitudinal shalt, pin- 10Q ions mounted thereon, a series of toothedraclrs cooperating with said. pinions to tilt the car laterally, discharging doors at one side of the car, buffers adapted tosupport said doors in their lowered position and means for positioning said buffers, substantially as described.

3. A dump car of comprising an underframe, curved members the character deseribedf a car body, and

'the underframe, said members being posi tioned-to support the car body at one side of its center of gravity in horizontal position and shaped to shift the center of support to the other side of the when the body tilts.

ln Witness whereof il have hereunto set my h and in the presence of two Witnesses. DAV-ID E. BLAR. 1KWitnesses' S'rUAnr' lt'. W. ALLEN, E. lt. McKenzie.

the center of Support of 65 the body to a hori- 75 an umileri'rame hav- 85 meansfor releasing said 90 supporting the car body on center' of gravity 115 

